Migration to Swift 4.2

Author: aronbalog

.swift-version

@@ -1 +1 @@
-4.0
+4.2

.travis.yml

@@ -1,11 +1,11 @@
 os: osx
-osx_image: xcode9.2
+osx_image: xcode10.1
 language: swift
 before_install:
 - pod repo update > /dev/null
 script:
 - set -o pipefail
-- xcodebuild test -workspace Vox.xcworkspace -scheme Vox -destination 'platform=iOS Simulator,name=iPhone 8,OS=11.2' ONLY_ACTIVE_ARCH=NO
+- xcodebuild test -workspace Vox.xcworkspace -scheme Vox -destination 'platform=iOS Simulator,name=iPhone 8,OS=12.0' ONLY_ACTIVE_ARCH=NO
 - pod lib lint
 after_success:
 - bash <(curl -s https://codecov.io/bash) -J 'Vox'

Podfile.lock

@@ -1,7 +1,7 @@
 PODS:
-  - Alamofire (4.7.0)
-  - Nimble (7.0.3)
-  - Quick (1.2.0)
+  - Alamofire (4.8.0)
+  - Nimble (7.3.1)
+  - Quick (1.3.2)
 
 DEPENDENCIES:
   - Alamofire (~> 4.7)
@@ -15,9 +15,9 @@ SPEC REPOS:
     - Quick
 
 SPEC CHECKSUMS:
-  Alamofire: 907e0a98eb68cdb7f9d1f541a563d6ac5dc77b25
-  Nimble: 7f5a9c447a33002645a071bddafbfb24ea70e0ac
-  Quick: 58d203b1c5e27fff7229c4c1ae445ad7069a7a08
+  Alamofire: 3ec537f71edc9804815215393ae2b1a8ea33a844
+  Nimble: 04f732da099ea4d153122aec8c2a88fd0c7219ae
+  Quick: 2623cb30d7a7f41ca62f684f679586558f483d46
 
 PODFILE CHECKSUM: d6370329bd52b0306d7c72b4a2cf75a0248944c9
 

Vox.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
 	spec.name            = 'Vox'
-	spec.version         = '1.2.0'
+	spec.version         = '1.2.1'
 	spec.license         = 'MIT'
 	spec.summary         = 'A Swift JSONAPI framework'
 	spec.author          = 'Aron Balog'

Vox.xcodeproj/project.pbxproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0920"
+   LastUpgradeVersion = "1010"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,9 +26,8 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
-      shouldUseLaunchSchemeArgsEnv = "YES"
-      codeCoverageEnabled = "YES">
+      codeCoverageEnabled = "YES"
+      shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference
             skipped = "NO">
@@ -57,7 +56,6 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
-      language = ""
       launchStyle = "0"
       useCustomWorkingDirectory = "NO"
       ignoresPersistentStateOnLaunch = "NO"

Vox.xcodeproj/xcshareddata/xcschemes/Vox.xcscheme

@@ -31,7 +31,7 @@ public class Context: NSObject {
                 let resource = mapResource(for: data)
                 dataType = .resource(resource)
             } else if let data = dictionary["data"] as? NSMutableArray {
-                let resources = data.flatMap({ (resourceData) -> Resource? in
+                let resources = data.compactMap({ (resourceData) -> Resource? in
                     guard let dictionary = resourceData as? NSMutableDictionary else { fatalError("Invalid data type") }
                     let resource = mapResource(for: dictionary)
 
@@ -40,7 +40,7 @@ public class Context: NSObject {
 
                 dataType = .collection(resources)
             } else if let errors = dictionary["errors"] as? NSMutableArray {
-                let errorObjects = errors.flatMap({ (object) -> ErrorObject? in
+                let errorObjects = errors.compactMap({ (object) -> ErrorObject? in
                     guard let object = object as? [String: Any] else { return nil }
                     return ErrorObject(dictionary: object)
                 })

Vox/Core/Class/Context.swift

@@ -17,7 +17,7 @@ extension Context {
                 let data = relationshipDocumentData["data"]
                 if let arrayOfBasicObjects = data as? NSMutableArray {
 
-                    value = arrayOfBasicObjects.flatMap({ (basicObject) -> Resource? in
+                    value = arrayOfBasicObjects.compactMap({ (basicObject) -> Resource? in
                         return resourcePool.resource(forBasicObject: basicObject as! [String: String])
                     })
                 } else if let basicObject = data as? NSMutableDictionary {

Vox/Core/Class/Context_Query.swift

@@ -106,7 +106,7 @@ public extension Document where DataType: Collection, DataType.Element: Resource
         if let array = document.context.dictionary["data"] as? [Any] {
             let selfData = self.context.dictionary["data"] as? NSMutableArray
 
-            let resources = array.flatMap({ (resourceJson) -> Resource? in
+            let resources = array.compactMap({ (resourceJson) -> Resource? in
                 guard let resourceJson = resourceJson as? NSMutableDictionary else { return nil }
                 let copy = resourceJson.mutableCopy() as! NSMutableDictionary